Polymer ea butadiene nitrile (CTBN) e felisitsoeng ka carboxyl ke elastomer e nang le khanyetso e ntle ea mechine, mocheso le lik'hemik'hale. Litšobotsi tsena tse ikhethang li etsa hore CTBN e be thepa e sebelisoang haholo liindastering tse fapaneng. Sehloohong sena, re tla hlahloba hore na butadiene nitrile e felisitsoeng ka carboxyl ke eng le ts'ebeliso ea eona masimong a fapaneng.
Nitrile ea butadiene e felisitsoeng ke carboxylke copolymer ea butadiene le acrylonitrile e fetang ts'ebetsong ea carboxylation nakong ea ts'ebetso ea tlhahiso. Ts'ebetso ena e hlahisa lihlopha tse sebetsang tsa carboxyl ka har'a ketane ea polymer, e ntlafatsang thepa ea eona ea ho tenyetseha. Copolymer e hlahisoang e na le boima bo phahameng ba limolek'hule, index e tlase ea polydispersity, le ho qhibiliha ho hotle litharollong tse fapaneng tsa tlhaho.
Li-polymer tsa butadiene nitrile tse felisitsoeng ke carboxyl li tsebahala ka ho hanyetsa mocheso, oli, mafura, metsi a hydraulic le lik'hemik'hale tse ling tse ngata. Bokhoni ba eona ba ho mamella mocheso o feteletseng ho tloha ho -40°C ho isa ho 150°C, hammoho le ho hanyetsa ozone le boemo ba leholimo ka mokhoa o babatsehang, bo etsa hore e be thepa e loketseng bakeng sa lits'ebetso tse boima.
E 'ngoe ea tšebeliso e kholo ea butadiene nitrile e felisitsoeng ke carboxyl ke indastering ea lifofane. E sebelisoa hangata e le sesebelisoa sa ho tiisa li-resin tsa epoxy tse sebelisoang tlhahisong ea meaho e kopaneng ea lifofane. CTBN e ntlafatsa ho hanyetsa ho thulana, ho tiea ha ho robeha le ho tšoarella ka kakaretso ha metsoako ena. Ho tsitsa ha eona mochesong ho e lumella ho boloka thepa ea eona ea mechini esita le libakeng tse phahameng le nakong ea liphetoho tse potlakileng tsa mocheso.
Tšebeliso e 'ngoe e hlahelletseng ea butadiene nitrile e felisitsoeng ke carboxyl e indastering ea likoloi. CTBN e sebelisoa hangata e le motsoako oa bohlokoa ho koaheleng, likhomaretsing le li-sealant bakeng sa likarolo tsa likoloi. Ho hanyetsa ha eona oli, mafura le lik'hemik'hale ho babatsehang, hammoho le ho tenyetseha ha eona le ho tšoarella ha eona, ho e etsa thepa e ntle bakeng sa li-gasket, li-O-rings, litiiso le li-diaphragm. E thusa ho netefatsa ts'ebetso e nepahetseng le nako e telele ea likarolo lienjeneng, li-transmission le litsamaiso tsa hydraulic.
Indasteri ea motlakase e boetse e rua molemo ka thepa e ikhethang ea li-nitrile tsa butadiene tse felisitsoeng ke carboxyl. Elastomer ena e sebelisoa haholo tlhahisong ea thepa ea ho thibela likhoele le thepa ea ho sheatha. Li-polymer tsa CTBN li fana ka khanyetso e ntle haholo mongobong, oli le lik'hemik'hale, hammoho le matla a phahameng a dielectric le botsitso ba mocheso. Thepa ena e etsa hore e be thepa e loketseng bakeng sa ho netefatsa polokeho le ts'epo ea litsamaiso tsa motlakase.
Ntle le liindasteri tse boletsoeng ka holimo, butadiene nitrile e fedisitsweng ke carboxyle boetse e sebelisoa tlhahisong ea lipente, likhomaretsi le li-sealant, moo ho lumellana ha eona le mefuta e fapaneng ea li-solvent tsa tlhaho ho leng molemo haholo. E boetse e sebelisoa ho etseng metsoako ea rabara e sebetsang hantle, e fanang ka khanyetso e eketsehileng ea tšusumetso le ho tenyetseha.
Ka bokhutšoanyane, carboxybutadiene nitrile ke elastomer e sebetsang ka mesebetsi e mengata e nang le khanyetso e ntle ea mechine, mocheso le lik'hemik'hale. Mefuta e mengata ea lits'ebetso tsa eona liindastering tsa lifofane, likoloi, motlakase le tse ling e pakile ts'epo le katleho ea eona. Ha theknoloji e ntse e tsoela pele 'me indasteri e hloka lisebelisoa tse phahameng tsa ts'ebetso, CTBN e ntse e tsoela pele ho fetoha le ho kenya letsoho liindastering tse fapaneng, e leng se etsang hore e be thepa ea bohlokoa bakeng sa lits'ebetso tse ngata.
Nako ea poso: Mphalane-20-2023